United States Pharmacopeia (USP) Reference Standard
Synonym(s): 19-Norethindrone; 17α-Ethynyl-19-nortestosterone; 17-Hydroxy-19-nor-17α-4-pregnen-20-yn-3-one; 17α-Ethynyl-17β-hydroxy-19-nor-4-androsten-3-one; 19-Nor-17α-ethynyl-4-androsten-17β-ol-3-one; 19-Norethisterone
Empirical Formula: C20H26O2
Formula Weight: 298.42
Linear Formula: C20H26O2
MDL Number: MFCD00067596
Melting Point: 205-206 °C(lit.)
Beilstein Registry Number: 1915671
Signal Word: Warning
Hazard statements: H351
Precautionary statements: P281
Hazard Codes (Europe) : Xn
Risk Statements (Europe): 40
Safety Statements (Europe): 22-36/37/39-45
WGK Germany: 3